40802447 has 6 divisors (see below), whose sum is σ = 47464128. Its totient is φ = 34973484.

The previous prime is 40802441. The next prime is 40802459. The reversal of 40802447 is 74420804.

It is not a de Polignac number, because 40802447 - 2⁶ = 40802383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40802441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 416303 + ... + 416400.

It is an arithmetic number, because the mean of its divisors is an integer number (7910688).

Almost surely, 2^40802447 is an apocalyptic number.

40802447 is a deficient number, since it is larger than the sum of its proper divisors (6661681).

40802447 is an equidigital number, since it uses as much as digits as its factorization.

40802447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832717 (or 832710 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 40802447 is about 6387.6793125516. The cubic root of 40802447 is about 344.2670063976.

The spelling of 40802447 in words is "forty million, eight hundred two thousand, four hundred forty-seven".